body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f0f2f5;
}

.nav {
    background-color: #007bff;
    color: white;
    padding: 15px 20px;
    font-size: 24px;
    text-align: center;
}

.login-container {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
}